This remarkable film depicts the creation of Biosphere 2, the world’s first (and so far, only) totally sealed miniature world designed for long term human habitation. In 1991, four men and four women were locked inside Biosphere 2 as an experiment to see if they could survive for two years by recycling all their waste, water and air, and by growing all their food without fertilizers or pesticides. Described as “One of the greatest scientific experiments of the 20th century”, Biosphere 2 contained a rainforest, ocean, river, marsh, desert and a half acre farm.Director, Ken Howard. Producer, Irving Rappaport.